1980 - 1981

1971 - 1973

1962 - 1974

1956 - 1961, 1967 - 1973

1958

1965

1963

1966 & 1968

1974 - 1975

1976 - 1979

1974

1968 - 1972

1963 - 1966

1950-1994

1967 - 1980

1978

1962 - 1970

1964 - 1966

1980 - 1981

1959 - 1961

1953 - 1961

1980

1966

1967 - 1973

1965

1967 - 1979

1973

1970

1969 - 1976

1980

1966 - 1982

1973 - 1985

1977 - 1978

1954-1960

1974

1970

1957 - 1960

1960 - 1963

1984 - 1985

1979-1980

1961 - 1968

1977-1994

1967 - 1969

1965 - 1968

1967

1974 - Present

1959 - 1961

1980 - 1982

1959 - 1968

1962 - 1964

1970 & 1972

1965 -1966

1975 - 1980

1976 - 1977

1964 - 1973

1961 - 1965

1968

1955 - 1967

1956 - 1957

1965 - 1975

1972

1959

1964 - 1965

1971 - 1973

1973

1963 - 1970

1960 - 1962

1965 - 1978

1965

1970 - 1974

1976

1968

1964 - 1965

1970 - 1974

1972-1974

1956 - 1959

1989 - 1990

1967 - 1971

1974

1972 - 1974

1958

1957-1960

1977 - 1982

1984 - 1989